The '''John D. and Catherine T. MacArthur Foundation''' is the 12th-largest private foundation
in the United States
Based in Chicago
, the Foundation supports non-profit organization
s in approximately 50 countries. MacArthur reports that it has awarded more than US $5.5 billion since its first grants in 1978.
[ According to the Foundation, it has an endowment of $6.5 billion and provides approximately $225 million annually in grants and program-related investments.]
The Foundation's stated aim is to support "creative people, effective institutions, and influential networks building a more just, verdant, and peaceful world." MacArthur's grant-making priorities include mitigating climate change and reducing prison populations. The Foundation sponsors the MacArthur Fellows Program, also referred to as “genius grants,” which are...